GENERAL GEOLOGY

CD 2002-07

Geologic Map of the Cordelia and Fairfield South 7.5' Quadrangles, Solano and Napa Counties, California. This CD contains the digital database for the above titled map. Graphic files include PDF and PostScript files. GIS files are in ArcInfo export format (uncompressed .e00). Text files include readme files and formal metadata in HTML format. Files containing raster images and base maps for the two quadrangles are also included.

CD 2002-04

Geologic Map of Monterey 30' x 60' Quadrangle and Adjacent Areas, California: A Digital Database. This CD contains a digital database including two colored versions of the geologic map, one overlaying a shaded-relief map and one without the shaded-relief map. There is also a colored explanation of the map units. Graphic files include Adobe Acrobat pdf and Postscript files. GIS files in ArcInfo export format (uncompressed .e00) are also included.

CD 2000-07

GIS Data for the Geologic Map of California. This CD contains a database of geologic units and faults digitized from the 1977 Geologic Map of California by Charles W. Jennings. Files are in both ArcInfo export files (.e00) and MapInfo format. The CD also contains Postscript and ArcInfo plot files, and an Adobe Acrobat image of the map and legend. A planimetric raster base image of the state in TIFF format is included.

GEOHAZARDS and ENVIRONMENTAL GEOLOGY

CD 2005-01

Maps and GIS data for the Elk River Watershed, Humboldt County, California, Watershed Mapping Series, Map Set 4. Containsthe digital database for the maps Geologic and Geomorphic Features Related to Landsliding and Relative Landslide Potential with Geologic and Geomorphic Features. GIS data include landslides, geomorphology, stream features, and geology.

Maps and GIS Data for the Albion River Watershed, Mendocino County, California, Watershed Mapping Series 8. Containsthe digital database for the maps Geologic and Geomorphic Features Related to Landsliding and Relative Landslide Potential with Geologic and Geomorphic Features. GIS data include landslides, geomorphology, stream features, and geology.

Ridge-Top Spreading in California, Contributions Toward Understanding a Significant Seismic Hazard: by Earl W. Hart, 2003. Contains a digital collection of seven contributions on ridge-top cracking and spreading and the landforms associated with this process in California. The ridge-top landforms addressed in this volume occur almost exclusively in seismically active regions of California and some of the landforms have been fracturing caused by seismic shaking. This leads to the conclusion that seismic shaking may play a role in creating ridge-top spreading and associated landforms in California.

CD 2003-01 and 2003-02

Fault Investigation Reports Prepared Under the Alquist-Priolo Earthquake Fault Zoning Act. This statewide collection of AP site reports consists of 4,220 reports for 3,185 development sites filed with CGS through December 31, 2000. The reports contain a large amount of site-specific data on the locations of faults, as well as evidence for recency. CD 2003-01 covers site reports in northern California (north of latitude 35.75°N). CD 2003-02 covers site reports in southern California (south of latitude 35.75°N). Click here for more information.

CD 2002-01, 2002-02, and 2002-03

Fault Evaluation Reports for Development Sites within Alquist-Priolo Earthquake Fault Zones, 1974-2000. This statewide collection of AP site reports consists of 4,220 reports for 3,185 development sites filed with CGS through December 31, 2000. The reports contain a large amount of site-specific data on the locations of faults, as well as evidence for recency. CD 2002-01covers Region 1 - Central California; CD 2002-02 covers Region 2 - Southern California; and CD 2002-03 covers Region 3 - Northern and Eastern California. Click here for more information.

CD 2002-05

GIS Data for the Watersheds Mapping Series, Map Set 2, Jackson Demonstration State Forest, Mendocino County, California. This CD contains preliminary maps of geologic and geomorphic features (landslide maps) compiled from mapping conducted between 1982 and 2001 in the Jackson Demonstration Forest. It includes graphics files for the 3 maps in Watershed Mapping Series 2 in .pdf, .rft, .gra formats, and ArcInfo export files, ArcView shape files, and coverage metadata, as well as Acrobat Reader.

GIS Data for the Watersheds Mapping Series, Map Set 3, Digital Representation of OFR 99-10 and 99-10a, Freshwater Creek, Humboldt County, California. CD 2002-06 includes PDF's of the original map and a digital representation of the map of Geologic and Geomorphic Features Related to Landsliding, OFR 99-10, and the map of Relative Landslide Potential Map, OFR 99-10a. Also included is a map of Landslide Potential with Geologic and Geomorphic Features; this map is a digital representation of the map of Geologic and Geomorphic Features Related to Landsliding, OFR 99-10, combined with the map of Relative Landslide Potential Map, OFR 99-10a.

Maps, GIS Data and Geologic Report for the Watershed Mapping Series, Map Set 5, Gualala River Watershed, Sonoma County and Mendocino Counties, California. Contains the digital database for the maps Geologic and Geomorphic Features Related to Landsliding, Relative Landslide Potential with Geologic and Geomorphic Features, and Potential Restoration Sites and Habitat Limiting Factors for the Gualala River Watershed. GIS data include landslides, geomorphology, stream features, and geology.

GIS Data for the Watersheds Mapping Series, Map Set 1, Noyo River Watershed. This CD contains the results of the Noyo Watershed Mapping Project completed in 2001. It includes geologic and geomorphic features (landslide) maps and landslide potential maps for the Noyo River Watershed. The CD features graphics files for all 6 maps in the set (.pdf, .rft, .gra formats), ArcInfo export files, ArcView shape files, and coverage metadata, as well as Acrobat Reader.

North Coast Watershed Mapping, by DMG Staff, November 22, 1999. [ArcInfo® GIS and Adobe Acrobat versions of 60 quadrangles in Del Norte, Humboldt, and Mendocino counties] NOTE TO GIS USERS- An error exists in the geomorphology export file geomorph.e00. To allow this file to be imported into ARCINFO please follow these steps:

1. Copy the file (79,470 KB) to your hard drive.2. Remove the read only restriction. Right click on the file. Left click on properties. Under attributes, click the read-only box to remove the check and click the apply button.3. Edit geomorph.e00. Open the file using an asci text editor (textpad). search for "-3," replace it with "-3." Save file.This should allow the file to import into ARCINFO.

CD 2000-006

Digital Database of Faults from the Fault Activity Map of California and Adjacent AreasThis CD contains the digital database of faults shown on the Fault Activity Map of California and Adjacent Areas by Charles W. Jennings (1994; DMG Geologic Data Map No. 6). The database consists of line vectors that are annotated with respect to age of movement and line type (solid, dashed, etc.) as shown on the original paper map. This CD is intended to be used in conjunction with Geologic Data Map No. 6 and Bulletin 201. The GIS data are in ArcInfo export (.e00) and MapInfo formats.

Seismic Hazard Zone Maps

Intergraph layers from Official Maps of Seismic Hazard Zones may be downloaded, free of charge.

MINERAL RESOURCES

CD 99-001

Mineral Land Classification of a Portion of Tuolumne County, California for Precious Metals, Carbonate Rock, and Concrete-Grade Aggregate, by DMG Staff, October 6, 1999 [ArcInfo and Adobe Acrobat formats]